It's all about speech on the iPhone 4S, from the systemwide dictation features to the inscrutable but very helpful Siri assistant. The fine folks at Nuance (suppliers of some of the underlying IP that powers the 4S voice savvy) have made a big move into the mobile space; the company already has a suite of iOS apps that cover several speech-related functions.
There's Dragon Dictation for text entry, Dragon Go! and Search for finding what you need, Dragon for SalesForce to work with your CRM system, two Dragon